Method of forming coated fibers
Abstract
Abstract A STRAND IS MADE UP OF A LARGE NUMBER OF CONTINUOUS FILAMENTS BONDED TOGETHER BY A PLASTIC COATING, AND IS PARTICULARLY SUITED FOR CHOPPED STRAND EMPLOYED IN A MATRIX OF PLASTIC COMPATIBLE WITH THE COATING WHERE THE COATING BINDS THE FILAMENTS WHEN DIVIDED INTO SHORT STRAND LENGHTS. STRAND IS DRAWN UNDER TENSION OVER A SURFACE TO SEPARATE THE FILAMENTS AND IS PASSED THROUGH A MASS OF FINLEY DIVIDED PARTICLES OF THE COATING PLASTIC. PARTICLES ADHERE TO AND ARE CARRIED WITH THE STRAND INTO A HEATED REGION WHERE THE SOFTENING TEMPERATURE OF THE PLASTIC IS REACHED. THE PLASTIC FLOWS AND COALESCES TO FORM A BINDING COATING ON THE COOLED STRAND WHICH RETAINS ITS INTEGRITY WHEN CHOPPED OR OTHERWISE SEVERED INTO SHORT LENGTHS.
Inventors
- 👤 Samuel Binford Spencer
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |